When von Neumann's and Morgenstern's Theory of Games and Economic Behavior appeared in 1944, one thought that a complete theory of strategic social behavior had appeared out of nowhere. However, game theory has, to this very day, remained a fast-growing assemblage of models which have gradually been united in a new social theory - a theory that is far from being completed even after recent advances in game theory, as evidenced by the work of the three Nobel Prize winners, John F. Nash, John C. Harsanyi, and Reinhard Selten. Two of them, Harsanyi and Selten, have contributed important articles...

Philosophy of Science deals with the problem, 'What is science?' It seems that the answer to this question can only be found if we have an answer to the question, 'How does science function?' Thus, the study of the methodology of social sciences is a prominent factor in any analysis of these sciences. The history of philosophy shows clearly that the answer to the question, 'How does science function?' was the conditio sine qua non of any kind of philosophy of science, epistemology and even of logic. Aristotle, Hume, Kant, Mill, Russell, to mention a few classical authors, clearly emphasized...

Ethics, as one of the most respectable disciplines of philosophy, has undergone a drastic and revolutionary change in recent time. There are three main trends of this development. The first trend can be described as a tendency towards a rigorous formal and analytical language. This means simply that ethics has created beside its own formalized set theoretical language a variety of new formalized, logical and mathemati cal methods and concepts. Thus ethics has become a formalized meta or epidiscipline which is going to replace the traditional concepts, principles and ethical methods in the...